APPARATUS FOR ELECTRIC DISCHARGE MACHINING, AND METHOD FOR SETTING MACHINING CONDITION FOR THE APPARATUS

摘要

From the machining condition basic data (7) obtained experimentally, means (2) for creating a correlation graph (61) generates the data to be plotted on the correlation graph (61) which represents the correlation between the machining speed and precision according to the data (5) inputted for setting the machining condition, and displays the data thus generated on a display screen (31). Means (3) for controlling the instruction mark creates a graph cursor (62) displayed on the correlation graph (61) on the screen (31), and at the same time, shifts the graph cursor (62) to an instruction position designated by an input key (17) on the correlation graph (61). Means (1) for determining the actual machining condition determines the machining speed and precision from the instruction mark position (6) of the cursor (62) designated by the input key (17), and determines the actual machining condition such that the machining speed and precision can be achieved. The actual machining condition is determined in accordance with the basic data (7), set data (5), and the instruction mark position (6) of the graph cursor (62). This condition is displayed in the column (63) on the display screen (31). The operator can grasp the correlation between the machining speed and precision visually. As a result, even an inexperienced operator can set an optimal condition of an actual machining by a simple operation.